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SEADMC 2009 Scenario Brief

SEADMC 2009 Scenario Brief. 02 & 07 December 2009. 02-0010 / 07-0008 As of 29 Nov 09. Seismic Activities in Sunda Strait. October 15, 2009: Seismic tremors centered in Sunda Strait increased in intensity and frequency

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SEADMC 2009 Scenario Brief

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  1. SEADMC 2009 Scenario Brief 02 & 07 December 2009 02-0010 / 07-0008 As of 29 Nov 09

  2. Seismic Activities in Sunda Strait • October 15, 2009: Seismic tremors centered in Sunda Strait increased in intensity and frequency • October 23-November 12, 2009: Eruptive activity on Anak Krakatau resumes. • Most are minor • Some large enough to cause CVGHM* to raise Alert Level to Alert Level 3 • Alert Level lowered back to Alert Level 2 on 12 November Anak Krakatau Serang Jakarta * Center of Volcanology and Geological Hazard Mitigation

  3. Indonesia Alert System • Alert Level 1 Aktif Normal • Monitoring does not indicate changes • No eruption in foreseeable future • Alert Level 2 Waspada • Increasing activity, visual changes around crater • Magmatic, tectonic disturbance, no eruption imminent • Alert Level 3 Siaga • Intensively increasing activity • If trend of unrest continues, eruption possible in two weeks • Alert Level 4 Awas • Initial eruption of ash and vapor • Main eruption possible within 24 hours

  4. Increased Intensity • November 15, 2009: Activity increases rapidly • Alert Level raised to Alert Level 3 • November 17, 2009: • Alert Level raised to Alert Level 4

  5. 7.9 Earthquake and Eruption • November 19, 2009: • 7.9 earthquake strikes 13 km below surface just northeast of Anak Krakatau • Anak Krakatau explodes, northern caldera disappears • Ash plumes rise 10 km • Pyroclastic flows speed outward to western Java-Banten Province Map / Graphic

  6. Earthquake-generated Tsunami • November 19, 2009: Earthquake-generated tsunami sweeps western Java and eastern Sumatra • Waves up to 15 meters high strike west coast of Java from Merak to Tamanjaya. • Northern coast of Banten Province hit by waves up to 10 meters high • Banten town is destroyed

  7. Death and Destruction • Volcanic ash covers much of Banten Province, including Serang • “Tens of thousands” are feared dead or missing • Homes, business, resorts, farms, fish pens, roads are destroyed or damaged

  8. Chemical Plants Damaged / Destroyed • Earthquake and tsunami cause massive damage to chemical plants and port facilities in Anyer. • Hazardous materials threaten life and property in coastal and industrial areas

  9. Day 2: November 20, 2009 • Ash continues to fall, moving east towards Jakarta • Foreign governments press GOI for information on their nationals vacationing in resorts on west coast of Java • International community offers relief aid, funds, personnel, equipment, and military support

  10. Day 3: November 21, 2009 • GOI responds to the disasters • TNI supports BNPB, SATKORLAK • Indonesia NGOs, in-country representatives of international NGOs, UN agencies ( in country) support GOI • GOI resources are stretched to capacity • GOI, UNDAC assessment teams deploy • GOI welcomes international support and aid; starts prioritizing needs

  11. Day 5: November 23, 2009 • 115,000 estimated population displaced • Looming health emergency for survivors • Food and potable water shortages creating • Insufficient medical resources • Significant international assistance begins to arrive in Jakarta and Serang. • Some Anyer port facilities are able to receive supplies

  12. Day 7: November 25, 2009 • Foreign military commences major support to Banten Province relief efforts • Thousands remain homeless • Shelters overcrowded • Medical resources inadequate • Recovery of dead bodies and treatment of human remains becoming a major problem

  13. Infrastructure Damage • Deaths: • Estimated 25,000 dead in Banten Province • 15,000 in coastal areas: Merak to Tamanjaya • 5,000 between coast and Serang • 2,500 in Banten town and south towards Serang • 2,000 in Serang • Injuries: • Approximately 18,000 (10,000 included in internally displaced) • Trauma, fire • Toxic poisoning • Internally Displaced: • Over 115,000 • Mostly inland between Anyer and Merak and vicinity of Serang

  14. Infrastructure • Port Facilities: • Wharves and warehouses between Merak and Anyer damaged / destroyed • Chemical storage tanks in Merak port damaged; chemical spills cover coastal waters • Roads: • Roads between Merak and Tamanjaya damaged; many parts are impassible • Expressway linking Jakarta and Merak damaged; all overpasses between Merak and Serang damaged • Structures: • Virtually all buildings and residences in tsunami zone damaged or destroyed • Multi-story buildings in Serang damaged

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